1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa0dece70788e9d1fc35f30eaf6bc46e426360b9984390569afc1c3d38466a9. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3a14e1a7-da31-4697-8bbc-6bf163658835.json and https://artists.proofprofile.net/proofs/artist/3a14e1a7-da31-4697-8bbc-6bf163658835.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x360c9e17302b65c2edb8f414a11e8b4e0344912c1b6b25c096abaef42ef1d3f8. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ9Y21742570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ea4091b2315c811c31c17ff4410eb84468fd950d9160a8421362876f1b3130. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA81802473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e02df83dc49dc8c0169c401cf9f4317e55e1d9953cfd37dd66923ccc757c3b8. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA81802474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc0c0acf663f2e6e74e9bf477dd1819c1e10920212f9b6250f3dca410f306631. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:52:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA81802475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de187c7b194e58ca6d5a519261df41f690a301d493d98605d9fdfbf41f57963. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:41:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA81802476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad2ab601546270cadc9267c447202b7d9dd5d5b124206422889d81f2c5eaf5c. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:28:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA81802477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6525ab45d0f2389d48d34204d2701f261ded8362171600cf573321b09e544c70. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ42051654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc96a28bb3025d076a6e130336039d0526849ff6767b70fa0a8d1af934f9d327d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUNCC2000099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6525ab45d0f2389d48d34204d2701f261ded8362171600cf573321b09e544c70. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ42051654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca6b96c4dd1f0dbbbed846fd34eee82c626f3102620742270facb30f42c6d4c9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUNCC2000098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc96a28bb3025d076a6e130336039d0526849ff6767b70fa0a8d1af934f9d327d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUNCC2000099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca6b96c4dd1f0dbbbed846fd34eee82c626f3102620742270facb30f42c6d4c9. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUNCC2000098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a8ad1c8bda9ba324fd3fa086caeedb0e22eb833b26a767c4edf4faccf9ba632. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUNCC2000100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e43119f341f14060164cbf90c9406c59db01359757f131152c2899ae2442459. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUNCC2000101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91c253356d221d3e5fe4754d2c2db281ae19f41856620cbf91a6f409a483bc19. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:31:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUNCC2200096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41fdbef9eda23f243a33561fc613697c5483dc87895779fe940b09a09e7159a8. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUNCC2200093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed6e662506828582af978398731101de414b94404827a050a79abfaec3f7d4a4. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUNCC2200091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed6e662506828582af978398731101de414b94404827a050a79abfaec3f7d4a4. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUNCC2200091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc82c7c6659619564794851cae9256218e16ef4568326da3d7a63b697a8047334. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUNCC2200098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d442dc251d83ee243eb33f48332059a0a3368bdcf5a242ceae09d462de1f7e. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUNCC2200099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5241705824fb46d79b0037cea92610da1ed964e97966418b1eead7a3afccf922. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUNCC2200100.
Ceilings / Harness Your Hopes / Golden Hour
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e67d79ed18a71f3ff3b3afc9c09ea8eed37db8c76cba3aceb2ed7a6f2ae77ef. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSTT2400138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb878a7688e333e87da21a4bec89025692c9b0b8083d076e20c8e4bc64336e1e0. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSTT2400143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x182768e5ad65b96dc66f2877ef79bc7017cbe04130a88d1934cfa08499044256. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSTT2500217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca8dfa3c8c5e3bc637697b531daa1a4b900913e3c3d1beef6d419b4e5ea49981. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUI442400077.